The original, and some argue, the best of all the films. No-one saw (get it?) the Saw saga carrying on for this long, but all the films get us hooked and keep us coming back for more.
James Wan's directorial debut, Saw is described as "a violent, bloody, psychologically exhausting and exhilarating exercise in terror".
Brief plot synopsis: Adam (Leigh Whannell) and Dr. Gordon (Cary Elwes) are chained in a vile, disgusting bathroom, separated by a bloody corpse holding a gun and a tape recorder. They are each given a saw - the only obvious way out is to cut one of their feet off. A serial killer who specialises in torturing morally bereft strangers is playing a game with them: Gordon has less than eight hours to kill Adam or else the doctor's wife and daughter will be murdered.
As the two men engage in a battle of wits, alternately trying to help each other or secretly attempting to win the game, a series of flashbacks reveals the history of the madman and the pair of detectives (Danny Glover and Ken Leung) handling the case.
Some of the torture scenes are excruciatingly horrible and hard to watch, a real treat for fans of the genre.
Tools designed to ensure computer code in smart cars does not crash has been inspired by hungry penguins.
The rounded sleeping capsules send guests drifting into ocean before arriving on desert island by morning.
Sitting on the saddle activates the part of the brain responsible for learning, a study has claimed.
Scientists are appealing for more people to donate their brains for research after they die.
Life on Earth may have arrived from Mars on an asteroid, scientists have claimed.
Lunar mission scheduled at the end of 2017 could find out if beer can be brewed on the moon.
A bottle used to teach children how far litter can travel ended up on Scottish beach after 8,700-mile journey.
x Share us on Facebook